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Naragh meteorite, Naragh (Naraq; Narฤq; Narฤk), Delijan County, Markazi Province, Irani
| Regional Level Types | |
|---|---|
| Naragh meteorite | Meteorite Fall Location |
| Naragh (Naraq; Narฤq; Narฤk) | - not defined - |
| Delijan County | County |
| Markazi Province | Province |
| Iran | Country |
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Latitude & Longitude (WGS84):
34° 0' 39'' North , 50° 50' 15'' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Delฤซjฤn | 33,508 (2014) | 14.3km |
Ordinary chondrite, H6.
Fallen at 09:20 a. m. local time on August 18, 1974, on the flat roof of a secondary school at Naragh (51ยฐ30'E, 33ยฐ45'N [note: apparently wrong coordinates - they place the fall about 90 km away from Naragh, and were therefore changed]). It left a hole of about 30 cm in diameter and fell on the floor after passing through a roof of 30 cm in thickness. I. Eshghi of the Institute of Geophysics of the University of Teheran collected two specimens: the main ellipsoidal body (17x15x13 cm, 3190 g) and a smaller one (4x2.5 cm, 60 g). The first studies on mineralogical composition and structure were performed by an Italian team of the Rome University (Burragato et al., 1974).
The meteorite contains about 80% silicates, 14% Fe-Ni alloys, and 6% troilite and other accessories. The meteorite has a fine-grained structure, with average grain size of about 0.4-0.6 mm, and contains numerous recrystallised glassy chondrules. Olivine (forsterite, Fa18-20) occurs as laths and radiating crystals in chondrules and as coarse-grained phenochrysts and interstitial microcrystalline grains in the matrix. Fine-grained skeletal orthopyroxene (Fs16) is intergrown with olivine in both chondrules and matrix. Diopsidic clinopyroxene and sodic plagioclase are evenly distributed in the matrix, together with kamacite, taenite, Ni-free troilite, and chromite. Small metal-rich veinlets and a few glassy chondrules indicate that a few shock-induced alterations have been superimposed upon the mostly equilibrated meteorite mineralogy.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
9 valid minerals.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| โ Albite Formula: Na(AlSi3O8) |
| โ Chlorapatite Formula: Ca5(PO4)3Cl |
| โ Chromite Formula: Fe2+Cr3+2O4 |
| โ 'Clinopyroxene Subgroup' |
| โ Enstatite Formula: Mg2Si2O6 |
| โ Forsterite Formula: Mg2SiO4 |
| โ 'Maskelynite' Description: Glass of composition close to that of the meteorites largely equilibrated albitic plagioclase (10 vol%)is found in a few chondrules and elsewhere. |
| โ Native Iron Formula: Fe |
| โ Native Iron var. Kamacite Formula: (Fe,Ni) |
| โ 'Plessite' |
| โ Taenite Formula: (Fe,Ni) Description: 'Taenite' composition varies from Fe 66โ47% suggests that a small component of the then unknown tetrataenite is present as well as taenite proper. |
| โ Troilite Formula: FeS |
| โ Whitlockite Formula: Ca9Mg(PO4)6(PO3OH) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | Native Iron | 1.AE.05 | Fe |
| โ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| โ | Taenite | 1.AE.10 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| โ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| โ | Whitlockite | 8.AC.45 | Ca9Mg(PO4)6(PO3OH) |
| โ | Chlorapatite | 8.BN.05 | Ca5(PO4)3Cl |
| Group 9 - Silicates | |||
| โ | Forsterite | 9.AC.05 | Mg2SiO4 |
| โ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| โ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| โ | 'Clinopyroxene Subgroup' | - | |
| โ | 'Maskelynite' | - | |
| โ | 'Plessite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Whitlockite | Ca9Mg(PO4)6(PO3OH) |
| O | Oxygen | |
| O | โ Albite | Na(AlSi3O8) |
| O | โ Chlorapatite | Ca5(PO4)3Cl |
| O | โ Chromite | Fe2+Cr23+O4 |
| O | โ Enstatite | Mg2Si2O6 |
| O | โ Forsterite | Mg2SiO4 |
| O | โ Whitlockite | Ca9Mg(PO4)6(PO3OH) |
| Na | Sodium | |
| Na | โ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | โ Enstatite | Mg2Si2O6 |
| Mg | โ Forsterite | Mg2SiO4 |
| Mg | โ Whitlockite | Ca9Mg(PO4)6(PO3OH) |
| Al | Aluminium | |
| Al | โ Albite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | โ Albite | Na(AlSi3O8) |
| Si | โ Enstatite | Mg2Si2O6 |
| Si | โ Forsterite | Mg2SiO4 |
| P | Phosphorus | |
| P | โ Chlorapatite | Ca5(PO4)3Cl |
| P | โ Whitlockite | Ca9Mg(PO4)6(PO3OH) |
| S | Sulfur | |
| S | โ Troilite | FeS |
| Cl | Chlorine | |
| Cl | โ Chlorapatite | Ca5(PO4)3Cl |
| Ca | Calcium | |
| Ca | โ Chlorapatite | Ca5(PO4)3Cl |
| Ca | โ Whitlockite | Ca9Mg(PO4)6(PO3OH) |
| Cr | Chromium | |
| Cr | โ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | โ Chromite | Fe2+Cr23+O4 |
| Fe | โ Native Iron | Fe |
| Fe | โ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | โ Taenite | (Fe,Ni) |
| Fe | โ Troilite | FeS |
| Ni | Nickel | |
| Ni | โ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | โ Taenite | (Fe,Ni) |
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian PlateTectonic Plate
Indian Plate (India Plate)
- Sanandaj-Sirjan ZoneVolcanic Arc
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